Disk harrow.



Fl H. FRENCH.

UISK HARRDW.

APPLxcM'xuN mn Nov. 21. 19m.

latented Dec. l0, 1918.

2 SHEETS-SHEET I /N VEN Ton; t f.' H. FR ENUM F. H. FRENCH.

NSK NARROW.

APPLlcArlon man Nov. 21. |916.

Mw .J mi. TN .mm J. mf. vr. .W Dm 4.x ,www n .f M F. E

:mun I. mires, or'rnEs'roN, rows.

DISK HABBUW.

1pts/mention of Lettera Patent.

Patented Dec. 10, 1918.

Application Med November 27, 1916. Serial No. i33,519.

To all whom, it may concern.'

Be it known that I, FRANK H. FRENCH, -fgitiz'en of the United States of America, and nsident of Preston, Jackson county Iowa, gave invented a new and useful Dis, Haripw, of'which the following is a. specifica- 1on. Y

The object of this invention is to provide ,an improved construction for disk harrows. A further object of this invention is to rovide en improved construction for disk arrows in which the outer bearings ere attached adjacent the outer ends of the gangs, thereby preventing undesirable elevation of the outer ends of the gangs on rough surfaces. A 5

A further object of this invention is to provide improved means for Ielterin the inclination of the gangs relative to t e main frame and to the line of draft.

A further obJect of this invention is to provide improved means for elterin the elevation of the inner end ortions of t e gangs relative .to the outer en portions.

My invention consists in the construction, arrangement and combination of elements hereinafter set forth, pointed out in my clnimsand illustrated by the accompanying drawing, in which- Figure 1 is n plan of n portion of a disk lmrrow embodying my improvements. Fig. 2 is n side elevation of the same. Fig. 3 is a. detail rear elevation, artly in section and on nn enlarged scale, sliowing the means for mounting the draft links relative to the 11min frame. enlarged seule, s wing tho means for adjusting the elevation of the inner ends of the gnngs through 'the curved set lever bars, and Fig. 5 is a side elevation of the same. Fig. (i is n detail sectional elevation on the line 6-6 of Fig. l.

In the ronstruction of the device as shown the numeral v10 designates generally the main frame, preferably made of angle bars suitably secured together and braced, and 11 designates the pole hars attached to and crossing the central portion of said main frame and adapted to receive attachment of any suitable draft means. 12, 13 designate generally the gangs of disks mounted end to end at the rear of the main frame, the construction of which disks and the means for carrying same being Wholly immaterial so fmns my present invention is concerned. 'llie main frame 10 preferably is of approxi- Fig 4 is a detail plan, on en .Y

mately the seme length ns the gangs 12, 1 3

combined, so that its ends extend approximately to the outer ends of Suid gangs. Bearings l-l, 15, lo, 17 of nny suitable oonstruction nre mounted on the gangs 12, 13, the bearings l5, lli being adjacent the innen most disks of the respectivo gangs, and tho bearings il, lT boing ndjnrent the outermost disks of the respective gnng's, preferably between the two outermost disks ot' each gang.

Set levers 18, l!) nre fulcrulned intermedinl'e of their ends on the pole laure 11` one of snid levers being provided for ruoli of the gangs 12, 13, for .iltering their inclination rel-stiro to the line of drnft. The set levers 18, 19 nre provided with devices for engaging segments 20, 21 mounted on the Jole bars, to hold seid levers in :my position 1n which they muy be placed manually. Set lever bers or links 22, 23 nre pivoted to the lower ends oi' the levers 1R. 19 respectively and extend rearwardly :1nd re eeive pivotal connection to the innermost beur-ings 15, 16, thereby providing connections between the set levers und the innermost ends of the gangs 12, 13. Evener bers 24, 25 are provided und nre pivoted at their centers by bolts Q6 to the renr member of the main frame l0. one on each side of the median line of Suid frame, .said pivot bolts being npnoximntely midway between said medien line and the outermost end of tho seid freine. Theinnor ends of" the evonor bnrs 24, 25 nrc connected b v set lover links 27, 28 to the lower ends of the set lovers 18, 19 respectively, the said links prefcrnlily heilig pivotally connected ut ihoir forward ends conjointly with the pivoting of the set lever hure 22, 23 to seid levers. The outer ends of the evener bars 24, 25 :1re pivotnlly connected by links 29. 30 With the outermost bearings le, 17 respectively, thereby connecting the set levers 18, 19 to the outer ends of the respectivo gangs. Forward move ment of the ui'iper ends of the levers 18, 19, either separately or conjunctivelv, results in rearward movement of the links 2912, 23 nnd- 27. 28. Renrwnrd movement of the linksQQ, 23 results in n rearward movement of the inner ends of the gangs 12, 13; and renrword movement of the links 27. 28 results in un oscillation of the evener bars 24, 25, moving the outer ends of seid bars forwardly and thereby effecting n forward movement of the outer ends of the' gangs 12, 13, through the links 29, 30; the evener 111113 24. 2T being 111111111111 at 1111 111111111 with the 11.11115 ol 111e ,gangs 12. 13. ln thie` 1111111- ner 111e inciinntion ot' the gangs 11111)' be :1L tem-d relative to 111e line of drnt't. 11n oppoite 11n-11111111011 111111151' gin-11 11111111 111111111111111 111 11 eonlnlon 111111111111'. T1111 prorinon of tlie 1111111111' bnry 24. 2:1. etl111ting 11 11111115111 ot movement 111' 111e links,A 211. tl 1'1'111111'11 to (1111 linke` 2:2. i311, providekv t'or 111111-111.;r 1111111 the inner 11nd 0111.11.1- ends o1 tl11- gangs. rather than requiring either 1111' 11111111' 1111115- o1- the outer ende4 to 1:1'111'111 tlm-11111111 :1 ,11111111111- dise tnnee to eti'eet tlxe 1111111111111 11dj11st1111111tn 111 11119` 111111111111- tl11l 111111115 12. 13 ns1-11111111 on v01-t 10:11 11x05 to eti'et-t :11111 ndjnshnenr of their inrlinfition. 111111 V1111-11 :1x1-s 111'11 1111'1' 1111111- t1111 :i1-111111 renter4 ol" 111e 1111111.19. the 111111-1- 111111 0111111' 11ndt1'111'11l1ng 111|11111 distant-ew. 1114 t111- :11'11111g111111111t .11 1111111111111 :1d- 1'11111111111 i ,11111111111 111'111' 11111 0111111111111 forms; 11i :nljnding 11111111l for T1111 inelinnfion of the f rztngn. H 11111 bearings 14. ll' :11'11 :111,121- 1-11nt tl11' 11111111' 111111# ot' 11111 gangs. 11111 1111111111 ot' 1111' 1'1'1111111 111111111111111: 111111 derives` euri-1111i 111111-11111 i er1-1111' dish-1111111111 on tl111 gangs. 11nd 1111' 11111111' ends ne` Well 11s other portons :1l-1' 1111111 into 111e 11111-111 11nd in'evented f1-11111 1111111'151111111;V riding 11p or r11-voting 11111111- selres 11'111'11 rongrli or 11111-11 ground is 1111- 1'1111111111'1111. 11s orenrs. 11'111111 111e 1111'11'1` 1111111'- ineml 111-1- 111111111'111111' removed t'rozn 11111 outer ends 111' tlngnno's. 11s is common.

11111111111111111111 111-11011 1mi-s 31. 32 preferably 111111111111 tln' 11111111' ends of 111e forwerdvnnd 111:11- inrndwrxl ot' 1111' 11111111 1'1'1111111 It) 11nd 1111111111111 :11111 support 11111 inter ende of 1111' 1111111111' 11111-5 2t. 21'. Rollen;` 33. 3l prefer 1111171' 111-11 1111111111111"mounted in 11111111' ends 11i' tl111 111.11111 t'rnnn' 111111 111111'1111 11111 links QSL t). p11-renting111111'111'11 ino-11111111111 111' `#11111 11111111111111 11i-111111111111111:1nt1t'r1 -tir111 5111-1111111 1.11.1' 1'111'111111111111'11111 1111111111111111 nl. `11111 |111|\`.--. '11111 11111-2.1` 151. lll p11` 1111111111111 the 111:11' 11111111 111-1 112' tl1e 111:1111 11111111-:11111111'111'11t11`t11111-1111- 111-1; .'13, IH. :11111 tlm-- tin- 111111'1' ends of the 4Jonge" .111-11` pren-11111.11 front rising.

roke l5 is p11-1111111 11n-Inlet: ite` forward open 11nd 11.1 11 bolt 2113 to 11111 1111111 11111111 l1 111111111 1111- 11111111 1'1-1111111 lll. 111111 11111 yoke ls 1'111'1111'11 will: :1 rross-lmr il? connroting the :irme of 1111' yoke :1nd overlying the pole 1mi-Q. .\11 :111111111111111 1111'111-218 is V['1111'11'111111111 :1t` 11s 11111-111' 111111 on 1111- bolt 1115.111111 is provided with 11111-111111: of 111111111011 i'orin for engaging :1 segment 5111 1-111'1'11111 by tlm pole 11111-11. for 11111111111; 111| 1111111- in 11111' 1111111111111 111 11'1111-11 1t 111:1 1' be-plan-ed 11:11111111111'. .\n 11n-nnte 111111111 rod 4t) ik pivoted' 111; one 11nd to the 1111'1'1' 21H. extends 1'1'11111'111'1111' 11nd downwardly. :1nd posses sliding'ly through 11n aperture ll formed cent1-:illy of 11111. crosse 11111' 3T of t1111'` yoke. .1111 111111111111111' m11 spring -12 1:11 1111111111 11111111111 11111 ,111111111 rod 1U 111111111111111111111'1111 ns1-1111s 11111 1011138111111 111e crow-11111111 21T of 11111 nreke. time providing :1 yielding Cennertion between #nid leverv and `yoke. The side members or 11i-111s of the yoke 35 :1re formed with :1i-emite slots 43 in their refiri'nds, through which project. studs 1l formed on the pole bars 11. said .Studs 1111 ving washers or heads 45 on their ende outside of the lvoke members; to hold seid 1'oke in place 111 its swinging movement. Une of seid slot. studs 11nd 11111111115: is lion-n in Figs. 2 11nd 5. Rollers 46. 41.7 :1re jonrnnled on the lower rear portions of the Side members or arms of the yoke 35 11nd said rollers ride on the set lever lin 's or 11111'5 22. .13 respectively. Tl1e..,inner ends of the gangs 12, 13 may be raised or lowered relative to the, outer ends thereof by 11111- ni 1111111111111 of the adjusting lever 38. A forward inove1nent of the lever 38 pennits a raising of the Yoke 35, the setr lever bars 22. Q3 11nd consequently of 111e inner ends of the gangs. A rearward increment of the lever 38 npplieepreseure to 111e yoke 35 through the sp1-111g' 42. 1111111111 is qute stift. and lowers the set lever 11111-51 2:2, 33 11n-0111111 the rollers 46, 47, thus lowering;r the inner ends of the gangs. This pro-- vides 11 1111111115 for accommodating the 11m-izontnl inclination of the gangs to the surfnee over which the machine is trevelin It the inner ends of the gangs strike an o strut-1:1011. they may be permitted to rise 11nd pass over the seme by compression of the spring 12. The set lever bars or links 22, :23 are bowed or diete of their ends to compensate for the 11r- 1-,1111t11 movement of the lower ends of the sei: levers 18. I9. in 11 remmen manner, thereb 11m-11111111' keeping' the gangs level at'. a 1 :angles of their inclination. 1

'l`l11l side members of the yoke 35 prefer- :1l1l'1' extend below the plone of the set; lever Imre 22. '325. :1nd 111-11 eonnected by a cross- 11:11' 4H. 11011-11 by dotted lines in Fig. extending beneath :1nd limiting downward nun-ement of the Said set lever here rentive to the yoke. The yoke 35 :dse is formed with :1 lower rro$s-b11r 49 (Fig. 4) beneath 111e pole bau-s 1l. 11nd adapted tofengage said pole 11111-11 11111111 of the lYoke.

Braves 5U 11i-e connected 11|: their forward ends to the 11111111 frnme by tle boite 2G. 11nd :1t their 111111' ends tol the centra portion of the frames of the disk nnits 12. 13,11irot11l-ly, so as to provide additional draft: and brace eonneetion between the main frame. 11nd the #e1-1111111 disk nnits. llie braces 50 also tend to keep 111e disk units in proper position` 11nd furnish 11, renter 11111-1111 11'111'1111 511111 11111111 11111)' ost-11111111. 11nd 1'111'111111- tend to prevent binding or friction ot" the bearings 14. I5. lli. l1' 111111111111 to 11.11' derives on 11'1111'11 they 111-11 111111111111111.

T1111 length o' 1111' 11111111 frame 10, exteneb 1111.r 11s it does entirely across the front o1' curved upwardly interme- 111r times und limit, npwardmoveund 1111 elevation of the disk members, is efectivo in prevgting ilnjilgy to draft animals by contact wi the 1. A disk harrow, comprisingda1 fram disk gangs mounted end to end 'nd sai frame, set levers fulcrumed on said frame, one of said set levers for each of said gangs, set lever bars pivoted to said levers and at their rear ends to inner ends of said genis, evener bars pivot/ed on opposite sides of t e frame, pivotal connectionsbetween said levers and inner ends of said evener bars and links pivotally connecting outer ends oi said evener bars to outer ends of said gangs, whereby the set lever bar and link o each gan may be simultaneously1 shifted longitudinally in opposite directions.

' 2. A disk barrow, comprisin a frame, disk gangs mounted end to end Eehind said frame, leversfulcrumed on said frame one of said levers for each of said gangs, ever bars pivoted at their forward ends to said levers and at their rear ends to said gangs, evener bars pivoted intermediate of their ends on opposite sides of said frame, pivotal connections between said levers and inner ends of said evener bars, and links pivotally connecting outer ends of said evener bars to said gangs in s aced relations to the connections thereto o said lever bars.

3. A disk barrow, comprisin a frame, disk gangs mounted end to end behind said frame, levers fulcrumed on said frame, one of said levers for each of said gangs, lever bars pivoted at their forward ends to said levers and at their rear ends to said gangs, evener bars pivoted intermediate of their ends on opposite sides of said frame, pivotal connections between said levers and inner ends of said evener bars, links pivotally connecting outer ends of said evcner bars to said gangs, and retaining means on said frame engaging said links.

4. In a disk barrow having a frame and a disk unit mounted there-behind, an evenmbar pivoted intermediate of its ends on the framc,'a link pivotally connecting` one end only of said evcncr bar to said disk unit, a shifting member independent of said cvcner har pivotally connected at its real' end to said disk unit in spaced relations to said link, and positive means for simultaneously shifting said shifting member and the opposite end of said evenor bar in the same dircction. whereby end porti'iiiis of said disklinit are positively shifted in opposite directions.

5. ln a disk hai-row having a frame and a disk nnit mounted hvhind said frame, an owner har pivotcd intermediate of itsl ends on said ier-mno, a link pivotally connecting tho ontelond only of said evener har to said disk unit. a. loigrr fulcrnmod on said frame,

a shifting member pivotally connecting said lever to said disk unit in spaced relations to said link said shifting member being disconnected from said evener bar, and a link pivotally connecti the inner end of said .evener bar to said ever.

6. In a disk barrow havin a frame, a disk unit mounted behind sai frame and a set lever Abar pivotally oonneetin said disk unit to said frame, means for a lasting the elevation of said disk unit, comprising a member pivoted on a transverse axis on said frame, a lever fulcrumed on the frame adjacent said pivoted member, yieldin pressure devices interposed between `said ever and pivoted member and means on 'said pivoted member slidingly engaging the'set lever bar; said pivoted member being provided with means for engagin said frame to limit oscillation of said mem r. ,I

7. In a disk barrow havin a frame a disk unit mounted behind sai frame an a set lever bar pivotally connecting one end of said disk unit to said frameV means for adjusting the elevation of said comprising a yoke member plvoted at its forward end on a transverse axis on said frame, a lever fulcrumed on the frame adjacent to the pivoted yoke member, yielding ressure devices interposed between sai liaver and the rear end dportion of said pivoted oke memberan a roller journaled on said pivoted yo e member and engaging the set lever bar.

8. A disk barrow, comprising a main frame, disk units mounted end to end behind said frame, said frame extendin substantially throughout the combined ength of said disk units, pivotal connections between said frame and end portions of said units for oscillating said units on vertical axes adjacent their midlengths, and pivotal brace connections extending from points midwa between the median line and outer ends o main frame to the said axes of said disk units.

9. A disk barrow, comprising a main frame, a disk unit mounted behind said main frame and adapted for oscillation on a vertical axis adjacent its midlength, an evener har pivoted on said main frame, a link connecting one end of said evcner bar to the outer end of said disk unit, a lever on the frame, pivotal connections betwceli said disk unit,

lever and the inner endI of said evener bar, 

